Finding the Fourth Proportional to 21,196.18, 31,793.73 and 10,110.70

Step by Step Solution

1. Step 1: Write the proportion equation
   21,196.18 : 31,793.73 = 10,110.70 : x
2. Step 2: Convert to fraction form
   21,196.18/31,793.73 = 10,110.70/x
3. Step 3: Cross multiply
   21,196.18x = 31,793.73 × 10,110.70
4. Step 4: Simplify right side
   21,196.18x = 321,456,865.91
5. Step 5: Solve for x
   x = 321,456,865.91/21,196.18
6. Step 6: Final answer
   x = 15,165.79